04 5.4 F150 Idling high

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Old 07-23-2018, 01:12 PM
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04 5.4 F150 Idling high

When I come to a stop (still in drive), my rpms only go down to 900-950... way too high, it sounds like I still have my foot on the gas. No other issues, just my rpms are too high while idling.
 
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Old 07-23-2018, 04:42 PM
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Check for vacuum leaks, stuck throttle plate, or IAC (if it has one).
 
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Old 07-23-2018, 05:08 PM
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No IAC, it has an electronic throttle. The throttle body may be dirty, causing sticking.
 
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Old 07-24-2018, 07:26 AM
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Last night I cleaned out my throttle body with carb cleaner careful not to touch anything but the throttle and I also cleaned the MAF sensor with the MAF sensor cleaner and replaced air filter. Drove this morning and it's still idling high when I come to a stop. It's stuck around 900-1000 rpms. Also, when I shift into any gear (still holding my brake and not accelerating) RPM's jump to 1000 and decrease slowly as I let go of brake.
 



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